DE69407679D1 - Magnetic material for high frequencies - Google Patents

Magnetic material for high frequencies

Info

Publication number
DE69407679D1
DE69407679D1 DE69407679T DE69407679T DE69407679D1 DE 69407679 D1 DE69407679 D1 DE 69407679D1 DE 69407679 T DE69407679 T DE 69407679T DE 69407679 T DE69407679 T DE 69407679T DE 69407679 D1 DE69407679 D1 DE 69407679D1
Authority
DE
Germany
Prior art keywords
magnetic material
high frequencies
frequencies
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69407679T
Other languages
German (de)
Other versions
DE69407679T2 (en
Inventor
Takehiro Konoike
Hiroshi Marusawa
Hiroshi Takagi
Kunisaburo Tomono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Application granted granted Critical
Publication of DE69407679D1 publication Critical patent/DE69407679D1/en
Publication of DE69407679T2 publication Critical patent/DE69407679T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H01F1/346—[(TO4) 3] with T= Si, Al, Fe, Ga

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
DE69407679T 1993-07-20 1994-07-19 Magnetic material for high frequencies Expired - Lifetime DE69407679T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP17914993 1993-07-20
JP25067293 1993-10-06
JP14795794A JP3396957B2 (en) 1993-07-20 1994-06-29 High frequency magnetic composition

Publications (2)

Publication Number Publication Date
DE69407679D1 true DE69407679D1 (en) 1998-02-12
DE69407679T2 DE69407679T2 (en) 1998-04-16

Family

ID=27319451

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69407679T Expired - Lifetime DE69407679T2 (en) 1993-07-20 1994-07-19 Magnetic material for high frequencies

Country Status (4)

Country Link
US (1) US5458797A (en)
EP (1) EP0635854B1 (en)
JP (1) JP3396957B2 (en)
DE (1) DE69407679T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1197242A (en) * 1997-09-24 1999-04-09 Murata Mfg Co Ltd Magnetostatic wave device
JP3772963B2 (en) * 2000-08-18 2006-05-10 株式会社村田製作所 Manufacturing method of magnetic material for high frequency
JP2003137646A (en) * 2001-10-24 2003-05-14 Alps Electric Co Ltd Garnet ferrite for low loss irreversible circuit element, production method therefor, and irreversible circuit element using the same
CN113651609A (en) * 2021-09-01 2021-11-16 横店集团东磁股份有限公司 Microwave ferrite material and preparation method and application thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5631289A (en) * 1979-08-22 1981-03-30 Hitachi Ltd Beam index type color television receiver
FR2661904B1 (en) * 1990-05-11 1993-10-15 Ceramiques Composites COMPOSITION FOR CERAMICS AND PROCESSES FOR OBTAINING SAME.
JPH0536518A (en) * 1991-07-26 1993-02-12 Murata Mfg Co Ltd Manufacture of garnet-type ferrite unit

Also Published As

Publication number Publication date
US5458797A (en) 1995-10-17
EP0635854A1 (en) 1995-01-25
JPH07153615A (en) 1995-06-16
DE69407679T2 (en) 1998-04-16
JP3396957B2 (en) 2003-04-14
EP0635854B1 (en) 1998-01-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition